<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=d">
    <title>九九乘法表</title>
    <style>
       div {
        width: 700px;
        height: 400px;
        padding: 2px;
        margin: 10px;
      background:url(./5.webp) no-repeat;
        
        background-size: cover;
        }
    div:nth-child(1) {
      border: 2px solid #999;
      box-sizing: border-box;
      float: left;
      /* box-sizing: content-box; */
    }
    div:nth-child(2) {
        border: 2px solid #666;
      box-sizing: border-box;
      float: left;
      background:url(./5.webp) no-repeat;
    }
    div:nth-child(3)    {border: 2px solid #666;
      box-sizing: border-box;
      float: left;
      background:url(./5.webp) no-repeat;} 
                    
      div:nth-child(4)     {border: 2px solid #666;
      box-sizing: border-box;
      float: left;
      background:url(./5.webp) no-repeat;} 
                                  
                    
      
        
        tr,td{ border:solid #ccc 1px; padding:5px;text-align:center; background-color: #FEFEFE;  opacity:0.8;}
        
    </style>
</head>
<body>
<?php
        $str="<table cellspacing='5'>";
        for($i=1;$i<=9;++$i){
            $str.= "<tr>";
            for($j=1;$j<=$i;++$j){
                $str.= "<td>"."$i*$j=".$i*$j."</td>";
            }
            $str.= "</tr>";
        }
        $str.= "</table>";
    ?>
    <div>
    <?php echo $str; ?>
    </div>
    <div>
    <?php echo $str; ?>
    </div>
    <div>
    <?php echo $str; ?>
    </div>
    <div>
    <?php echo $str; ?>
    </div>
</body>
</html>